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首页> 外文期刊>Journal of Neurophysiology >Functional anatomy of extraocular muscles during human vergence compensation of horizontal heterophoria
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Functional anatomy of extraocular muscles during human vergence compensation of horizontal heterophoria

机译：卧式异细胞症人类血肿补偿中外盖肌的功能解剖学

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We employed magnetic resonance imaging to quantify human extraocular muscle (EOM) contractility during intermittent convergent and divergent strabismus with each eye viewing monocularly at 20 cm compared with centered target fusion. Contractility, indicated by posterior partial volume change, was analyzed in transverse rectus and in medial and lateral superior oblique (SO) muscle compartments. In five subjects with intermittent esotropia, abduction of the deviated eye to monocular target fixation was associated with significant whole lateral rectus (LR) contraction, but with medial rectus (MR) relaxation that was significantly greater in the superior than inferior compartment. Esotropic eye abduction to binocular fusion was associated with similar relaxation in the two MR compartments. but with greater contraction in the LR's superior than inferior compartment. The whole diverging eye SO muscle relaxed. In three subjects with intermittent exotropia, converging eye fusional adduction was associated with significant whole LR relaxation and with MR contraction attributable to significantly greater contraction in the superior than inferior compartment. In adduction of the exotropic eye to monocular target fixation but not fusional adduction, the whole SO exhibited significant relaxation. Rectus pulley positions were not significantly altered by fusion of either form of intermittent strabismus. Globe rotational axis was eccentric in intermittent strabismus, rolling the eye so that rectus EOM lever arms facilitated vergence. These results confirm. and extend to fusion of intermittent horizontal strabismus. differential compartmental function in horizontal rectus EOMs and suggest a novel role for the SO in compensation of both intermittent esotropia and exotropia.
机译：我们采用磁共振成像在间歇会聚和发散斜面期间量化人体肌肉（EOM）收缩性，与每只眼睛在20厘米处的每只眼睛观察到居中的靶融合。在横向直方体和内侧和横向上倾斜（SO）肌肉隔室中分析了由后部体积变化的收缩性。在具有间歇性斜视的五个受试者中，将偏离眼睛与单眼靶固定的绑架与显着的整个横向直肠（LR）收缩相关，但在优于下舱中的高于较大的内侧直肠（MR）松弛。对双目融合的辅音眼绑架与两个MR隔间的类似松弛相关。但在LR优于下舱的缩小缩小。整个发散的眼睛如此肌肉放松。在三个受口斜面的受试者中，会聚眼睛集法与显着的整体LR弛豫相关，并且由于在优于下舱中的优于较大的术中，占据的先生收缩是显着提高的。在内皮眼中的外科眼睛与单眼靶标固定中进行但不具有集法的内容，整体所以显着放松。通过融合的间歇性斜视的融合没有显着改变直肠滑轮位置。地球旋转轴在间歇性斜视中是偏心的，滚动眼睛，使螺栓EOM杠杆臂促进了可逆性。这些结果确认。并延伸到间歇水平斜视的融合。水平直肠EOMS中的差分分区功能，并提出了一种新的作用，即在间歇性斜视和外斜面的补偿中。

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